Evaluation of Cumulative Damage of RC Members under Repeated Impact Loading

• Published in: Applied Mechanics and Materials Vol. 784; no. Damage Mechanics: Theory, Computation and Practice; pp. 500 - 507
• Main Authors: Tamai, Hiroki, Sonoda, Yoshimi
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 01.08.2015
• Subjects: Caissons; Continuum damage mechanics; Cumulative damage; Impact loading; Loads (forces); Mathematical models; Natural disasters; Reinforced concrete; Cumulative Damage; RC Member; Repeated Impact Loading; FEM
• ISBN: 9783038355502; 303835550X
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.784.500

In the civil and structural engineering field, there are so many problems regarding act of impact loading against some structures due to natural disaster. So it is important to evaluate the damage condition of them after impact loading, and to estimate the residual performance of them. This study is focused on a reinforced concrete (herein after called RC) structure such as caisson breakwater and rock-shed. In order to quantitatively evaluate the dynamic behavior and cumulative damage of RC members under low-velocity single and repeated impact loading, we conducted numerical approach by using the theory of Continuum Damage Mechanics (herein after called CDM). At the result, we clarified not only impact behavior of the members but also the relationship between cumulative kinetic energy of repeated impact loading and cumulative damage of the members. In addition, applicability limit of our model based on scalar damage modeling was clarified.